310 THE CANADIAN ENTOMOLOGIST. 



as long as wide or still longer. 



9 Strongylogastroidea, Ashm., n. g. 



(Type S. apicalis, Say.) 



Clypeus truncate. c5" Siobla, Cameron. 



(Type S. mooreana, Cam,) 



8. Claws bifid or cleft. 



Clypeus small, truncate or at the most sub-emarginate anteriorly. 



9 Siobla, Cameron. 



Claws simple or with a minute' tooth at base ; clypeus distinctly 

 emarginate j head with the frontal area well developed, enclosing 

 the front ocellus ; third antennal joint longer than 

 the fourth. $ Stromboceras, Konow. 



9. Hind wings with two discal cells 11. 



Hind wings without a discal cell 10. 



10. Anal cell in hind wings shorter than the submedian, usually briefly 



petiolated. 



Marginal cell in hind wings at apex subacute, with a short 

 appendage, the recurrent nervure originating far before the 

 transverse median nervure ; claws cleft or with a long tooth 



at base Aphilodyctium, Ashm., n. g. 



(Type S. rubripes.) 



Marginal cell in hind wings at apex rounded, without an 



appendage, the recurrent nervure originating just before the 



transverse median nervure ; claws with a triangular median 



or basal tooth Taxonus, Hartig. 



1 1. Wings elongate, narrowed ; hind tibiae very long, nearly twice the 



length of their femora ; anal cell in hind wings shorter than the 

 submedian ; claws bifid ; clypeus triangularly emarginate 



anteriorly Rhoptroceros, Konow. 



Wings normal ; hind tibiae not nearly twice as long as their femora ; 

 anal cell in hind wings fully as long as the submedian. 



Transverse nervure in anal cell straight, perpendicular ; claws 

 with a median tooth ; head coarsely punctate, opacjue, without 

 a frontal area ; clypeus triangularly emarginate ; third and 

 fourth antennal joints equal . .Polystichophagus, Ashm,, n. g. 



(Type S. filicis, Klug.) 



Transverse nervure in anal cell oblique ; claws cleft or simple. 



Clypeus semicircularly emarginated ; frontal area poorly 



